Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Frank H. Prochaska American Safety Razor 5
2 Paradee Bunnag American Safety Razor 4
3 Peter Chaikowsky Black & Decker 3
#4 Kurt Schaeffer National Optronics 2
#4 David A. Wilson The Dow Chemical 2
#6 W. Kenneth Wilkinson 1
#6 Kenneth E. Martin Invista North America S.A.R.L. 1
#6 Richard E. Stafford Sanaria 1

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